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(E)-3-(4-Chloro-phen-yl)-1-(1-naphth-yl)prop-2-en-1-one.

ABSTRACT: In the title compound, C(19)H(13)ClO, the benzene ring and the naphthalene system, are twisted by 12.3 (3) and 36.1 (2)°, respectively, and in opposite directions with respect to the central propenone bridge. The bond-angle pattern within the benzene ring is influence by both substituents; these influences are almost additive. In the crystal, the molecules are linked by C-H⋯O and C-H⋯Cl inter-actions.

SUBMITTER: Dutkiewicz G

PROVIDER: S-EPMC2971946 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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(E)-3-(4-Chloro-phen-yl)-1-(1-naphth-yl)prop-2-en-1-one.

Dutkiewicz Grzegorz G Samshuddin S S Samshuddin S S Narayana B B Yathirajan H S HS Kubicki Maciej M

Acta crystallographica. Section E, Structure reports online 20091128 Pt 12

In the title compound, C(19)H(13)ClO, the benzene ring and the naphthalene system, are twisted by 12.3 (3) and 36.1 (2)°, respectively, and in opposite directions with respect to the central propenone bridge. The bond-angle pattern within the benzene ring is influence by both substituents; these influences are almost additive. In the crystal, the molecules are linked by C-H⋯O and C-H⋯Cl inter-actions. ...[more]

PMID: 21578952

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3-(3,4-Dichloro-phen-yl)-1-(2-naphth-yl)prop-2-en-1-one.

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Project description:The title compound, C(16)H(13)ClO, adopts an E configuration with respect to the C=C double bond of the propenone unit. The dihedral angle between the two benzene rings is 45.9 (2)°. In the crystal structure, mol-ecules are arranged into sheets parallel to the ac plane and the sheets are stacked along the b axis. This arrangement is stabilized by weak inter-molecular C-H⋯π inter-actions involving both aromatic rings.

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(E)-3-(2-Chloro-phen-yl)-1-(4-nitro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(15)H(10)ClNO(3), a substituted chalcone, the 2-chloro-phenyl and 4-nitro-phenyl rings make a dihedral angle of 26.48 (6)°. The nitro group makes a dihedral angle of 11.64 (7)° with the plane of the benzene ring to which it is bound. Weak intra-molecular C-H⋯O and C-H⋯Cl inter-actions involving the enone groups generate S(5) ring motifs, which help to stabilize the planarity of the 3-(2-chloro-phen-yl)prop-2-en-1-one segment of the mol-ecule. In the crystal structure, adjacent mol-ecules are stacked in a head-to-tail fashion into columns along the a axis by π-π inter-actions [centroid-centroid distance = 3.6955 (8) Å]. Neighbouring columns are linked by weak C-H⋯O inter-actions.

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